package java_cup;

/**
 * A specialized version of a production used when we split an existing
 * production in order to remove an embedded action. Here we keep a bit of extra
 * bookkeeping so that we know where we came from.
 * 
 * @version last updated: 11/25/95
 * @author Scott Hudson
 */

public class action_production extends production {

	/**
	 * Constructor.
	 * 
	 * @param base
	 *            the production we are being factored out of.
	 * @param lhs_sym
	 *            the LHS symbol for this production.
	 * @param rhs_parts
	 *            array of production parts for the RHS.
	 * @param rhs_len
	 *            how much of the rhs_parts array is valid.
	 * @param action_str
	 *            the trailing reduce action for this production.
	 */
	public action_production(production base, non_terminal lhs_sym,
			production_part rhs_parts[], int rhs_len, String action_str)
			throws internal_error {
		super(lhs_sym, rhs_parts, rhs_len, action_str);
		_base_production = base;
	}

	/* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . */

	/** The production we were taken out of. */
	protected production _base_production;

	/** The production we were taken out of. */
	public production base_production() {
		return _base_production;
	}
}
